DVT30-90~DVT550-865digitally tuned filter

BOWEI

60

Package Outline

Pinout

DVT30-90~DVT550-865

Outline tolerance

0.5mm；

Orientation dot pin 1

DVT30-90~DVT550-865

Bottom

binary tuning word is determined by the following relationship:

Tuneword =

⎟

⎟

⎠

⎞

⎜

⎜

⎝

⎛

−

−

low

high

low

desired

f

f

f

f

×250

Example：If you wish to tune to 50MHz using a 30 to 90 M

Hz filter, the tune word is：

⎟

⎠

⎞

⎜

⎝

⎛

−

−

30

90

30

50

×250=83D=53H

Notes

1)

The relationship between tuneword and frequency is only an approximate one.

2)

Replacement alternative for MICRO-POLE series of POLE/ZERO

3)

Zero DC resistance at both I/O port, additional DC blocking capacitance needed if necessary

4)

RF input and output ports are interchangeable

5)

Special frequency bands are available

Typical Plots

% 3dB Bandwidth vs. Frequency

Insertion Loss vs. Frequency

DVT30-90-5

4.0

30

frequency(MHz)

50

70

90

5.0

6.0

4.5

5.5

DVT30-90-5

-3.0

-2.5

-2.0

-4.0

-3.5

frequency(MHz)

30

50

70

90

Pin

1

2

3

4

5

6

7

Descrip Gnd

A7

A6

A5

A4

A3

A2

Pin

8

9

10-13

14

15

16

Descrip

A1

A0

N/C

GND GND

Pin

17

18-28

29

30

Descrip

RF

GND

RF

GND